Maximize margins in a light naphtha isomerization unit by producing additional C 6 products The increasing demand for more efficient and low-emissions fuels due to stringent environmental policies and growing environmental awareness is leading refiners to find options to enhance the research octane number (RON) of the final product. The increasing demand for more efficient and low-emissions fuels due to stringent environmental policies and growing environmental awareness is leading refiners to find options to enhance the research octane number (RON) of the final product. This has made the isomerization process an important and intrinsic part of almost all refineries. The isomerization process is not only capable of upgrading the octane number of naphtha fractions—particularly C